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Ratibida columnifera

Known as: Ratibida columnaris, Ratibida columnaris (Sims) D.Don, Ratibida columnifera (Nutt.) Wooton & Standl. 
 
National Institutes of Health

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2011
2011
Ratibida pinnata, Capitulum close with worm. Family Asteraceae, Subclass Asteridae. Origin: Native. 
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2002
1998
1998
 
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